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公开(公告)号：EP3365974A1
公开(公告)日：2018-08-29
申请号：EP16778817.3
申请日：2016-10-10
申请人： Thales , Université de Bordeaux , Institut Polytechnique de Bordeaux , Centre National de la Recherche Scientifique
CPC分类号： H03M3/502 , H03K4/023 , H03M1/1245 , H03M1/742
摘要： The present invention concerns a device (10) for generating analogue signals comprising a current pump (12) controlled by a control code (cmd) generated by a module (11) for calculating the digital code with noise-shaping. The calculation module (11) receives, as input, a digital signal (In) representative of the analogue signal to be generated and comprises at least one quantiser and a stage (115) for compensating for a quantisation error. The current pump (12) comprises two groups (G1, G2) of at least one electric current generator (51) and two groups (C1, C2) of at least one switching means (52), said switching means being controlled by the control signal and transmitting the electric currents between the electric current generators and the inputs of a differential amplifier (55) having a predominantly capacitive input impedance connected in series between said two groups of switching means.
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公开(公告)号：EP2997657A1
公开(公告)日：2016-03-23
申请号：EP14725157.3
申请日：2014-05-19
申请人： THALES , Centre National de la Recherche Scientifique , Institut Polytechnique de Bordeaux , Université de Bordeaux
摘要： The system comprises: - a set of at least two electric current generators (101) - at least one capacitor (102) - activation/deactivation means (103) for activating/deactivating said electric current generators (101); the means for generating electric current being connected together in parallel and the capacitor being connected in series with the electric current generators, the activation/deactivation means controlling said generators (101) by means of a digital flow making it possible to control the intensity of the electric current entering said capacitor (102) generating, at the terminals of said capacitor, a trapezoidal voltage signal, said analogue signal being reconstituted by interpolating said trapezoidal signal.
摘要翻译： 该系统具有：一组至少两个电流发生器，用于电流发生器的至少一个电容器和激活/去激活装置; 所述电流发生器彼此并联连接，所述电容器与所述电流发生器串联连接，所述启动/停用装置通过数字流控制所述发电机，从而允许控制进入所述电容器的电流的强度并产生 在电容器的端子处的梯形电压信号，通过梯形信号的内插重建模拟信号。
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公开(公告)号：EP2997657B1
公开(公告)日：2017-11-22
申请号：EP14725157.3
申请日：2014-05-19
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4.发明公开
公开(公告)号：EP4447348A1
公开(公告)日：2024-10-16
申请号：EP23305542.5
申请日：2023-04-12
申请人： Commissariat à l'énergie atomique et aux énergies alternatives , UNIVERSITE DE BORDEAUX , Institut Polytechnique de Bordeaux , Centre National de la Recherche Scientifique
摘要： The present invention discloses a method to dynamically adapt a full semantic and RF transmission/reception chain, taking into account jointly both the semantic channel and the physical communication channel. Such adaptation defines the physical shape of the signal that carries the modulated information through the physical channel.
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5.发明公开
公开(公告)号：EP2102981A2
公开(公告)日：2009-09-23
申请号：EP08761931.8
申请日：2008-01-14
CPC分类号： H03F1/0266 , H03F1/565 , H03F3/19 , H03F3/217 , H03F3/68
摘要： The reconfigurable power amplifier of the present invention includes at least one amplification circuit (E1, E2) and control means (6) of said amplification circuit for adapting the operation thereof depending on an input signal (RF in) applied thereto. The control means include means (4, 5) for modifying the compression point of said amplification circuit and for adapting the gain of the circuit in order to increase the efficient added power of the circuit for the modified compression point.
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6.发明公开RÉSONATEUR ACOUSTIQUE EN VOLUME À FRÉQUENCE DE RÉSONANCE RÉGLABLE ET UTILISATION D'UN TEL RÉSONATEUR DANS LE DOMAINE DE LA TÉLÉPHONIE. 审中-公开随着手机产业共振频率可调节而这样的谐振器的使用声学容积谐振器
公开(公告)号：EP2109935A1
公开(公告)日：2009-10-21
申请号：EP08701476.7
申请日：2008-01-15
发明人： BELOT, Didier , CATHELIN, Andreia , DEVAL, Yann , EL HASSAN, Moustapha , KERHERVE, Eric , SHIRAKAWA, Alexandre Augusto
CPC分类号： H03H9/172 , H03H9/0547 , H03H2003/0428 , H03H2009/02181 , H03H2009/241
摘要： The invention relates to a volume acoustic resonator having an adjustable resonance frequency, comprising a piezoelectric member with two electrodes. It further includes a switching member (12) defining an additional electrode that is selectively superimposed on one of the electrodes for varying the total thickness of said electrode and modifying the resonance frequency of the resonator accordingly.
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